The document says to use `/r:GridV1=grid.dll` at a command line. This left me wondering the following: - What command line are we using here? E.g., powershell, cmd, something visual studio specific? - /r looks like an parameter for a command, but what command? --- #### Document Details ⚠ *Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.* * ID: 42871bc9-b130-8acf-11e1-bca2ac6c33f8 * Version Independent ID: fc5187e6-8cad-b6b9-d5b4-fa5d847bcda9 * Content: [extern alias - C# Reference](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/extern-alias) * Content Source: [docs/csharp/language-reference/keywords/extern-alias.md](https://github.com/dotnet/docs/blob/master/docs/csharp/language-reference/keywords/extern-alias.md) * Product: **dotnet-csharp** * GitHub Login: @BillWagner * Microsoft Alias: **wiwagn**